CN213088780U

CN213088780U - High-performance double-packing absolute sealing butterfly valve

Info

Publication number: CN213088780U
Application number: CN202022057028.2U
Authority: CN
Inventors: 陈德安
Original assignee: Hunan Gaoci Control System Technology Co ltd
Current assignee: Hunan Gaoci Control System Technology Co ltd
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2021-04-30
Anticipated expiration: 2030-09-18

Abstract

The utility model discloses a two absolute sealing butterfly valves that pack of high performance, including valve body, flashboard and valve rod, the upper end of mounting panel is provided with down the apron, and the up end of apron installs the upper cover plate down to the up end of upper cover plate is provided with down the protection casing, and the up end of protection casing is provided with down flange down simultaneously, and is provided with flange directly over flange down, the valve rod is installed at the inside center of valve body, and the lower part of valve rod installs the flashboard, and installs in turbo mechanism the upper end of valve rod. The utility model discloses a two absolute sealing butterfly valves that pack of this high performance, the structure sets up rationally, utilizes sealed filling layer to seal up the packing to the gap between upper valve seat and the valve rod, avoids revealing, uses safer and more reliable for the lower pole head that the valve rod lower extreme set up can rotate to be connected in the recess, makes things convenient for the rotation activity of valve rod, so that drive the rotatory valve of opening of flashboard or closing, uses more smoothly convenient.

Description

High-performance double-packing absolute sealing butterfly valve

Technical Field

The utility model relates to a high performance butterfly valve technical field specifically is a two absolute sealing butterfly valves that pack of high performance.

Background

The existing butterfly valve comprises a valve body with a valve cavity, wherein a valve rod and a valve plate linked with the valve rod are arranged in the valve cavity, a medium inflow channel for a medium to flow into the valve cavity and a medium outflow channel for the medium to flow out of the valve cavity are respectively arranged on the valve body, an upper valve seat is further arranged in the valve cavity, a dynamic seal is formed between the upper valve seat and the valve plate, and the valve rod rotates to drive the valve plate to rotate, so that the butterfly valve is opened and closed at two stations.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem lie in overcoming prior art's high performance butterfly valve after long-term the use, because the gap can appear between valve rod and the last valve seat, lead to revealing with the medium, cause unnecessary troublesome defect, provide a high performance two absolute sealing butterfly valve that packs. A two absolute sealing butterfly valves that pack of high performance has that the structure sets up rationally, utilizes sealed filling layer to seal the packing to the gap between last valve seat and the valve rod, avoids revealing, uses safer and more reliable for the lower pole head that the valve rod lower extreme set up can rotate to be connected in the recess, makes things convenient for the rotation activity of valve rod, so that drives the rotatory valve that opens of flashboard or close the valve, uses characteristics such as more smoothly convenient.

In order to achieve the above object, the utility model provides a following technical scheme: a high-performance double-packing absolute sealing butterfly valve comprises a valve body, a gate plate and a valve rod, wherein a lower cover plate is arranged at the upper end of a mounting plate, an upper cover plate is arranged on the upper end face of the lower cover plate, a lower protective cover is arranged on the upper end face of the upper cover plate, a lower connecting flange is arranged on the upper end face of the lower protective cover, an upper connecting flange is arranged right above the lower connecting flange, an upper protective cover is arranged between the lower connecting flange and the middle part of the upper connecting flange, and a plurality of groups of fastening bolts are arranged between the lower connecting flange and the outer edge of the upper connecting flange;

the valve rod is installed at the inside center of valve body, and the flashboard is installed to the lower part of valve rod to the upper end of valve rod is installed in turbine mechanism, the second filling layer has been set up in going up the protection casing, and has set up first filling layer in the protection casing down, and second filling layer and first filling layer all overlap and put outside the upper portion pole body of valve rod, and the valve rod is revolution mechanic simultaneously.

Preferably, the left side surface of the valve body is provided with a left valve port, the right side surface of the valve body is provided with a right valve port, a flow passage is arranged between the left valve port and the right valve port, and the flashboard is arranged in the middle of the flow passage.

Preferably, the outer annular surfaces of the left end and the right end of the valve body are respectively provided with a mounting plate, the mounting plates are provided with a plurality of groups of screw holes, and the left lower part and the right lower part of the valve body are respectively provided with a supporting seat.

Preferably, the bottom center of valve body is provided with the base, and sets up the recess in the base to the lower extreme of valve rod is provided with down the pole head, and lower pole head rotates to be connected in the recess simultaneously.

Preferably, the worm is arranged at the right part of the turbine mechanism, the shaft rod is sleeved in the worm, the turntable is installed on the outer end head of the shaft rod, and meanwhile, the shaft rod and the turntable are of a rotating structure.

Preferably, the first filling layer is made of polytetrafluoroethylene material, and the second filling layer is made of epoxy resin material.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the high-performance double-packing absolute sealing butterfly valve is reasonable in overall structure arrangement, a second packing layer and a first packing layer are sequentially sleeved outside the upper rod body of the valve rod, an upper protection cover is arranged outside the second packing layer, a lower protection cover is arranged outside the first packing layer, the installation of the sealing packing layer is facilitated, a gap between the upper valve seat and the valve rod is sealed and filled by the sealing packing layer, leakage is avoided, and the use is safer and more reliable;

2. set up the recess in the base that the bottom center of valve body set up for the lower pole head that the valve rod lower extreme set up can rotate to be connected in the recess, makes things convenient for the rotation activity of valve rod, so that drive the rotatory valve that opens or close of flashboard, and it is more smooth and easy convenient to use.

Drawings

FIG. 1 is a schematic front view of the structure of the present invention;

FIG. 2 is a rear view of the structure of the present invention;

FIG. 3 is a left side view of the structure of the present invention;

fig. 4 is a schematic sectional structure diagram of the structure of the present invention.

Reference numbers in the figures: 1. a turbine mechanism; 2. a worm; 3. a shaft lever; 4. a turntable; 5. an upper connecting flange; 6. a lower connecting flange; 7. a lower protective cover; 8. an upper cover plate; 9. a lower cover plate; 10. mounting a plate; 11. a valve body; 12. a screw hole; 13. a shutter plate; 14. a supporting seat; 15. a base; 16. a right valve port; 17. a valve stem; 18. a groove; 19. a lower club head; 20. a flow channel; 21. a left valve port; 22. a first filling layer; 23. a second filling layer; 24. an upper protective cover; 25. and fastening the bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a high-performance double-packing absolute sealing butterfly valve comprises a turbine mechanism 1, a worm 2, a shaft rod 3, a rotary disk 4, an upper connecting flange 5, a lower connecting flange 6, a lower protective cover 7, an upper cover plate 8, a lower cover plate 9, a mounting plate 10, a valve body 11, a screw hole 12, a flashboard 13, a supporting seat 14, a base 15, a right valve port 16, a valve rod 17, a groove 18, a lower rod head 19, a flow channel 20, a left valve port 21, a first filling layer 22, a second filling layer 23, an upper protective cover 24 and a fastening bolt 25, wherein the upper end of the mounting plate 10 is provided with the lower cover plate 9, the upper end surface of the lower cover plate 9 is provided with the upper cover plate 8, the upper end surface of the upper cover plate 8 is provided with the lower protective cover 7, the upper end surface of the lower protective cover 7 is provided with the lower connecting flange 6, the upper connecting flange 5 is arranged right above the lower connecting flange 6, a second filling layer 23 is arranged in the upper protective cover 24, a first filling layer 22 is arranged in the lower protective cover 7, the second filling layer 23 and the first filling layer 22 are both sleeved outside the upper rod body of the valve rod 17, meanwhile, the valve rod 17 is of a rotating structure, the first filling layer 22 is made of polytetrafluoroethylene materials, the second filling layer 23 is made of epoxy resin materials, a plurality of groups of fastening bolts 25 are arranged between the outer edges of the lower connecting flange 6 and the upper connecting flange 5, the valve rod 17 is arranged at the center inside the valve body 11, the lower part of the valve rod 17 is provided with the gate 13, the upper end of the valve rod 17 is arranged in the turbine mechanism 1, the right part of the turbine mechanism 1 is provided with the worm 2, the shaft rod 3 is arranged in the worm 2, the outer end of the shaft rod 3 is provided with the upper rotary disk 4, meanwhile, both the shaft rod 3 and the rotary disk 4 are of a rotating structure, the, and the right side of the valve body 11 is provided with a right valve port 16, a flow passage 20 is arranged between the left valve port 21 and the right valve port 16, meanwhile, the flashboard 13 is installed in the middle of the flow passage 20, the outer annular surfaces of the left end and the right end of the valve body 11 are respectively provided with an installation plate 10, the installation plate 10 is provided with a plurality of groups of screw holes 12, the left lower part and the right lower part of the valve body 11 are respectively provided with a support seat 14, the bottom center of the valve body 11 is provided with a base 15, a groove 18 is formed in the base 15, the lower end of the valve rod 17 is provided with a lower rod.

As shown in fig. 1-4, the overall structure of the device is shown, a second filling layer 23 and a first filling layer 22 are sequentially sleeved outside an upper rod body of a valve rod 17, an upper protective cover 24 is arranged outside the second filling layer 23, and a lower protective cover 7 is arranged outside the first filling layer 22, so that the installation of the sealing filling layer is facilitated, a gap between an upper valve seat and the valve rod is sealed and filled by the sealing filling layer, the leakage is avoided, and the device is safer and more reliable to use;

a groove 18 is formed in a base 15 arranged at the center of the bottom of the valve body 11, so that a lower rod head 19 arranged at the lower end of the valve rod 17 can be rotatably connected in the groove 18, the valve rod 17 is convenient to rotate, the gate plate 13 is driven to rotate to open or close the valve, and the valve is smoother and more convenient to use.

The working principle is as follows: when the high-performance double-packing absolute sealing butterfly valve is used, the pipe bodies on the two sides are respectively connected at the left end and the right end of the valve body 11, then the mounting plate 10 is abutted against a flange connected with a pipe orifice, the screw bolt is screwed in a screw hole 12 on the mounting plate 10 for fixing, the mounting strength is enhanced, the shaft lever 3 is driven to rotate and move together by rotating the rotary table 4, the shaft lever 3 rotates a worm, the worm rotates a turbine, the upper end of a valve rod 17 at the center of the turbine is driven to rotate and move together, the lower pipe body of the valve rod 17 drives the flashboard 13 to rotate to open or close a valve, the pipe bodies on the two sides are convenient to communicate or carry out terminal conveying, the lower protective cover 7 and the upper protective cover 24 are arranged at the upper part of the valve rod 17, the first packing layer 22 is arranged in the lower protective cover 7, the second packing layer 23 is arranged in the upper protective cover 24, and the gap between the upper pipe body, avoid revealing, carry safe and reliable more, it is simple to use convenient.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a two absolute sealing butterfly valves that pack of high performance, includes valve body (11), flashboard (13) and valve rod (17), its characterized in that: a lower cover plate (9) is arranged at the upper end of the mounting plate (10), an upper cover plate (8) is arranged on the upper end surface of the lower cover plate (9), a lower protective cover (7) is arranged on the upper end surface of the upper cover plate (8), a lower connecting flange (6) is arranged on the upper end surface of the lower protective cover (7), an upper connecting flange (5) is arranged right above the lower connecting flange (6), an upper protective cover (24) is arranged between the lower connecting flange (6) and the middle part of the upper connecting flange (5), and a plurality of groups of fastening bolts (25) are arranged between the lower connecting flange (6) and the outer edge of the upper connecting flange (5);

valve rod (17) are installed at the inside center of valve body (11), and flashboard (13) are installed to the lower part of valve rod (17) to install in turbine mechanism (1) the upper end of valve rod (17), go up protection casing (24) and endotheca put second filling layer (23), and have set first filling layer (22) in lower protection casing (7), and second filling layer (23) and first filling layer (22) all overlap and put outside the upper portion pole body of valve rod (17), and valve rod (17) are rotating-structure simultaneously.

2. A high performance dual packing absolute seal butterfly valve as claimed in claim 1, wherein: the left side surface of the valve body (11) is provided with a left valve port (21), the right side surface of the valve body (11) is provided with a right valve port (16), a flow channel (20) is arranged between the left valve port (21) and the right valve port (16), and the flashboard (13) is arranged in the middle of the flow channel (20).

3. A high performance dual packing absolute seal butterfly valve as claimed in claim 1, wherein: the valve is characterized in that mounting plates (10) are arranged on outer annular surfaces of the left end and the right end of the valve body (11), a plurality of groups of screw holes (12) are formed in the mounting plates (10), and supporting seats (14) are arranged on the left lower portion and the right lower portion of the valve body (11).

4. A high performance dual packing absolute seal butterfly valve as claimed in claim 1, wherein: the bottom center of valve body (11) is provided with base (15), and sets up recess (18) in base (15) to the lower extreme of valve rod (17) is provided with lower pole head (19), and lower pole head (19) rotate simultaneously and connect in recess (18).

5. A high performance dual packing absolute seal butterfly valve as claimed in claim 1, wherein: the right part of the turbine mechanism (1) is provided with a worm (2), a shaft rod (3) is sleeved in the worm (2), an outer end head of the shaft rod (3) is provided with an upper turntable (4), and the shaft rod (3) and the turntable (4) are both of a rotating structure.

6. A high performance dual packing absolute seal butterfly valve as claimed in claim 1, wherein: the first filling layer (22) is made of polytetrafluoroethylene materials, and the second filling layer (23) is made of epoxy resin materials.